"I went into the studio with them for a couple of hours to work on some stuff and, funnily enough, I ended up showing them 'The Sound' as a suggestion, but nothing came of it. I was asked to do it, so I thought I'd see how it all works but it just didn't really work very well. It didn't resonate so I thought I'd stick to my own thing."

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He went on to tell pal Nick Grimshaw on his Radio 1 Breakfast Show that he heard dollar bill sounds when the band contacted him…

“They were doing recording in London and they invited me to come down and they were like 'let's work on a tune' and I was a bit like keeeerching. So I turned up, and I was a bit like 'Oh god I don't even know if I've got anything'. At the time I was working on stuff for the record so I was like 'Right, what are the pop-ier sides of these demos?’ So I played them 'The Sound' and they were like 'Yeah, it's alright'.”

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Matty said he thought the One Direction lads “wanted to do a song that sounded like one of our other songs. So it wasn't actually close to being a One Direction song but they did hear it.

Despite thinking “it's really distasteful when artists talk about money” Matty said, “c'mon - if One Direction at their peak want you to write a tune for them, you'd be an idiot to not do it."